145953730 has 16 divisors (see below), whose sum is σ = 282925944. Its totient is φ = 53890560.

The previous prime is 145953713. The next prime is 145953737. The reversal of 145953730 is 37359541.

It can be written as a sum of positive squares in 4 ways, for example, as 78730129 + 67223601 = 8873^2 + 8199^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145953730.

It is not an unprimeable number, because it can be changed into a prime (145953737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561231 + ... + 561490.

Almost surely, 2^145953730 is an apocalyptic number.

145953730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145953730 is a deficient number, since it is larger than the sum of its proper divisors (136972214).

145953730 is a wasteful number, since it uses less digits than its factorization.

145953730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122741.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 145953730 is about 12081.1311556493. The cubic root of 145953730 is about 526.5081111308.

The spelling of 145953730 in words is "one hundred forty-five million, nine hundred fifty-three thousand, seven hundred thirty".